JPS6363659B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is characterized in that the needle shaft is bent, the base of the needle shaft is attached to the needle bar by a groove and a stopper, and the bent part of the needle shaft is attached to the corresponding needle. The present invention relates to a needle bar for a warp knitting machine having needles supported on a seat of the bar.

[Prior Art] A needle bar as described above is known from German Patent Application No. 1287248. The needle bar has a sloped surface that closely contacts the needle shaft on the side surface and extends obliquely to support the bending section. This is because the axial thrust acting on the needle, that is, the thrust acting substantially in the direction of the needle axis, tends to cause the needle to slide along its slope, which impairs the tightness between the needle and the needle bar. This may cause the problem to occur. Furthermore, in order to improve precision, the angle must be held accurately in order to be regulated by a diagonally extending surface such as the slope of a needle bar, but there is a problem in that it is not always easy to maintain the angle accurately. It was hot.
In the case of warp knitting machines, the required accuracy is extremely high, and all needle heads must be aligned with high precision in the longitudinal direction of the needle bar. Since the refraction at the transition position from the bending part of the needle shaft to the base of the needle shaft directly affects the height of the needle head by the slope, if the precision of the slope is low, the length between the needles will vary. in this case,
There are two ways to align and fix the needles. One is to attach the base of the needle shaft to the needle bar via a groove and a stop, and the other is to attach the bend to a slit in the needle bar, but there is no lateral guidance of the base of the needle shaft. . In this way, the longitudinal alignment of the needles,
That is, the perpendicularity of the longitudinal axis of the needle with respect to the needle bar is dependent on the relatively short section of the slitted bend, but the slit does not improve the accuracy of needle alignment.

In addition, the needle bar with a needle is described in West German Patent Publication No.
No. 2,655,269, the needle has an inclined bend, but the bend is unsupported. Although the base of the needle shaft is completely attached to the slit of the needle bar, there is also the problem that the needle must be positioned separately through a groove and a stop into which the base of the needle shaft is inserted.

[Problems to be Solved by the Invention] The present invention has been made to solve the above-mentioned problems, and its purpose is to solve the problem even if axial thrust is applied to the needle during movement of the needle bar. The object of the present invention is to provide a needle bar and a needle formed in such a shape that displacement of the needle is prevented.

[Means for Solving the Problems] In order to achieve the above object, the features of the present invention include providing a bent portion of the needle with a surface extending substantially perpendicularly to the direction of movement of the needle; The reason is that it is seated on the seat of the bar. Note that the base of the needle shaft is attached to the groove of the needle bar in the same manner as before.

[Function] Since the seating surface provided on the bending part of the needle is seated on a seat extending substantially perpendicular to the direction of movement of the needle, and the axial thrust is substantially orthogonal to the seating surface,
The thrust is received by the catch without producing a component in the direction of shifting the needle. Moreover, since the needle bar only needs to be formed with its front surface perpendicular to the seat, the needle bar is easy to manufacture.

For a needle bar with a needle shaft that bends obliquely, a base is formed integrally with the needle shaft between the needle bar and the bending part, and the base is provided with a surface that seats on the seat of the needle bar. This is desirable.

[Example] The present invention will be described based on an example shown in the drawings.

Although the embodiment shown in FIG. 1 relates to a compound needle, it is equally applicable to other types of needles, such as latch needles.

As shown in FIG. 1, the needle shaft 2 of the compound needle 1 is milled with a groove 3 for a slide bar (not shown). One end of the needle shaft 2 becomes a needle head 4, and the other end reaches a base 6 via a bent portion 5. The bending portion 5 is seated on the seat 8 of the needle bar 9 on the needle bar side surface. This seating surface and catch extend in a direction substantially perpendicular to the direction of movement of the needles 1 during knitting. Therefore, the force acting on the needle shaft 2 is conveniently received by the seat 8 of the needle bar 9.

The base portion 6 of the needle shaft is separately attached to each groove of the needle bar 9 via a stopper 10, as in the conventional case.

The embodiment shown in FIG. 2 is also a compound needle 1, but the bending part 1
1 is bent diagonally. The other parts are the same as those of the embodiment shown in FIG.

As shown in FIG. 2, the bending section 11 has a triangular base section 7 on the side far from the groove 3. As shown in FIG. The base part 7 is formed integrally with the bending part 11, and its seating surface extends perpendicularly to the needle axis 2, and is seated on the seat 8 of the needle bar 9, which extends in the same direction. In this way, the catch 8 is substantially perpendicular to the direction of movement of the needle during knitting. Moreover, the platform 7 gives the needle 1 good stability. For example, a stitch that slides on the needle shaft 2 has a groove 3 relative to the needle shaft 2.
However, since the base 7 supported by the seat 8 resists bending of the needle shaft 2,
There is no risk that the needle shaft 2 will be bent due to the stitches. This improvement in stability is the same in the embodiment shown in FIG.

[Brief explanation of drawings]

FIG. 1 is an elevational view of a needle bar equipped with a needle whose needle axis is bent at a right angle, and FIG. 2 is an elevational view of a needle bar equipped with a needle whose needle axis is bent obliquely. In the figure, numeral 1 is a needle, 2 is a needle shaft, 3 is a groove,
4 is the needle head, 5 is the bending part, 6 is the base, 7 is the base, 8
is the catch, 9 is the needle bar, 10 is the stopper, 11
is the refraction part.

Claims (1)

[Scope of Claims] 1. A needle comprising a bent needle shaft, a base portion of the needle shaft attached to a needle bar by a groove and a stopper, and a bent portion of the needle shaft supported by the needle bar. This is a needle bar for a warp knitting machine, in which the base portion 6 of the needle shaft is attached to a groove of the needle bar 9, and the bent portion 5 is attached to the groove of the needle bar 9.
A needle bar for a warp knitting machine, characterized in that the needle bar is supported by a seat 8 on one surface extending substantially perpendicularly to the direction of movement of the needle 1 during knitting. 2 Needle bending part 11 consisting of an obliquely bent needle shaft
and the needle bar 9, a stand part 7 is provided, and the stand part 7 is formed integrally with the needle shaft and supported by the seat 8 of the needle bar 9. A needle bar for a warp knitting machine according to item 1.